noun Download 🔗Share A nitro derivative of benzene, C6H5NO2, prepared by reacting benzene with a mixture of nitric and sulphuric acids; any of a series of such compounds having two or more nitro groups Examples : "The chemical plant produced a large quantity of nitrobenzene, a key ingredient in the manufacture of dyes and pharmaceuticals. " compound substance chemistry Chat with AIVocabulary GamePractice Reading